octeontx2-af: Modify nix_vtag_cfg mailbox to support TX VTAG entries
This patch modifies the existing nix_vtag_config mailbox message to allocate and free TX VTAG entries as requested by a NIX PF. The TX VTAG entries are global resource that shared by all PFs and each entry specifies the size of VTAG to insert and the VTAG header data to insert. The mailbox response contains the entry index which is used by mailbox requester in configuring the NPC_TX_VTAG_ACTION for any MCAM entry. Signed-off-by: Vamsi Attunuru <vattunuru@marvell.com> Signed-off-by: Sunil Goutham <sgoutham@marvell.com> Signed-off-by: Naveen Mamindlapalli <naveenm@marvell.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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